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1Presentation_IDSpring VON 2001 Session 32 – 4G Wireless: Future of VoIP
4G Wireless: Future of VoIP4G Wireless: Future of VoIP
Michael A. Ramalho (moderator)Mauricio Arango (Sun Microsystems)
Dana Blair (Cisco Systems)Phil Neumiller (3Com)
2Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Michael Ramalho (Cisco Systems):– Session introduction and facilitator– 4G Wireless Implies:
• IP (and VoIPand VoIP) to the mobile endpoint• Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies.
• Mauricio Arango (Sun Microsystems):– Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G
• Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”):– Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities
• Dana Blair (Cisco Systems):– 4G: “The end of the Intelligent (services) Network”
• Question and Answer Panel
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSession Outline
3Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• PRESENT – Seamless handoffs can be designed for homogeneous networks – usually with limited participation of the mobile node (MN) in the decision.
• FUTURE – For IP to mobile node (MN) applications where there is a multiplicity of potential (wireless) access technologies:
–What functionality is required in the MN and Access Router (AR) to facilitate seamless transfer (network or MN initiated)?
–What QoS, AAA, Security infrastructure changes are needed?
• CHALLENGE – How do we help facilitate the future vision during transition from 3G and legacy cellular?
• ASSUMPTIONS:– Base IPv6 spec has fundamental mobile IP functionality– Multiplicity of (wireless) access technologies exist in
a particular geography
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSeamless Handoff Across Heterogeneous Networks
4Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
GPRS BackboneIP Network
Wireless IPv6
Network
Mobile IPv6 (data, non-real-time)Mobile IPv6 (data, non-real-time)
Internet
GPRS BackboneIP Network
Mobile Node
DHCPDHCP
Home Agent
DHCPDHCPWireless IPv6
Network
IPv6 Internet
MobilityMobilityServerServer
MobilityMobilityServerServer
BTS
BTS
BTS CorrespondingCorrespondingNodeNode
Mobile IPv6BindingUpdateSame Care of
Address
5Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
GPRS BackboneIP Network
Wireless IPv6
Network
Mobile IPv6 (data, non-real-time)Mobile IPv6 (data, non-real-time)
Internet
GPRS BackboneIP Network
Mobile Node
DHCPDHCP
Home Agent
DHCPDHCP
Same Care of Address
Wireless IPv6
Network
IPv6 Internet
MobilityMobilityServerServer
MobilityMobilityServerServer
BTS
BTS
BTS CorrespondingCorrespondingNodeNode
No Mobile IPBinding Update
Micro-MobilityManaged Locally
6Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
GPRS BackboneIP Network
Wireless IPv6
Network
Mobile IPv6 (data, non-real-time)Mobile IPv6 (data, non-real-time)
Internet
GPRS BackboneIP Network
Mobile Node
DHCPDHCP
Home Agent
DHCPDHCP
New Care of Address
Same Care of Address
Wireless IPv6
Network
IPv6 Internet
MobilityMobilityServerServer
MobilityMobilityServerServer
BTS
BTS
BTS CorrespondingCorrespondingNodeNode
7Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
GPRS BackboneIP Network
Wireless IPv6
Network
Mobile IPv6 (data, non-real-time)Mobile IPv6 (data, non-real-time)
Internet
GPRS BackboneIP Network
Mobile Node
DHCPDHCP
Home Agent
DHCPDHCP
New Care of Address
Same Care of Address
Wireless IPv6
Network
IPv6 Internet
MobilityMobilityServerServer
MobilityMobilityServerServer
BTS
BTS
BTS CorrespondingCorrespondingNodeNode
New Mobile IPv6Binding Update
Needed!
8Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
GPRS BackboneIP Network
Wireless IPv6
Network
Internet
GPRS BackboneIP Network
CorrespondingCorrespondingNodeNode
Mobile Node
DHCPDHCP
Home Agent
DHCPDHCP
New Care of Address
Same Care of Address
Wireless IPv6
Network
IPv6 Internet
MobilityMobilityServerServer
MobilityMobilityServerServer
BTS
BTS
BTS
Real-Time MobileIPv6 HandoffReal-Time MobileIPv6 Handoff
•Forwarding Tunnels (in-flight packets)•Context Transfer
QoS/COPSQoS/COPS
QoS/COPSQoS/COPS
SecuritySecurity
SecuritySecurity
GeneralizedGeneralizedAAA/HSSAAA/HSS
GeneralizedGeneralizedAAA/HSSAAA/HSS
GeneralizedGeneralizedAAA/HSSAAA/HSS
Real-Time Mobile IPv6 supports:•Make before break or break before make•Network initiated or mobile initiated handoff triggers
9Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• A multiplicity of wireless access technologies exist in a particular geography
• Handoffs of real-time IP streams are independent of access technology!
Corollary: Service provider is not “locked-in” to a particular access technology!
• Off-load of expensive spectrum with lower costaccess technologies (802.11/unlicensed spectrum)
• Business models that exploit 4G technologies yet to be derived (exploit statistical characteristics of mobility)
4G VoIP Technology - 4G VoIP Technology - Opportunities/ThreatsOpportunities/Threats
10Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Work begun in IETF in Seamoby andMobile IP Working Groups.
– draft-blair-rt-mobileipv6-seamoby-00.txt
• Many companies are working on architectures and prototype hardware to demonstrate feasibility and to determine seamlessness performance incross-technology handoff cases.
• More opinionated people follow ……….
4G Wireless Status4G Wireless Status
11Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Michael Ramalho (Cisco Systems):– Session Introduction and Facilitator– 4G Wireless Implies:
• IP (and VoIPand VoIP) to the mobile endpoint• Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies.
• Mauricio Arango (Sun Microsystems):– Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G
• Phil Neumiller (3Com):– Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities
• Dana Blair (Cisco Systems):– 4G: “The end of the Intelligent (services) Network”
• Question and Answer Panel
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSession Outline
12Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Michael Ramalho (Cisco Systems):– Session introduction and facilitator– 4G Wireless Implies:
• IP (and VoIPand VoIP) to the mobile endpoint• Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies.
• Mauricio Arango (Sun Microsystems):– Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G
• Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”):– Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities
• Dana Blair (Cisco Systems):– 4G: “The end of the Intelligent (services) Network”
• Question and Answer Panel
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSession Outline
13Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Michael Ramalho (Cisco Systems):– Session introduction and facilitator– 4G Wireless Implies:
• IP (and VoIPand VoIP) to the mobile endpoint• Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies.
• Mauricio Arango (Sun Microsystems):– Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G
• Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”):– Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities
• Dana Blair (Cisco Systems):– 4G: “The end of the Intelligent (services) Network”
• Question and Answer Panel
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSession Outline
14Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
• Michael Ramalho (Cisco Systems):– Session introduction and facilitator– 4G Wireless Implies:
• IP (and VoIPand VoIP) to the mobile endpoint• Seamless handoff for real-time IP streams across heterogeneous (wireless) access technologies.
• Mauricio Arango (Sun Microsystems):– Unique Aspects of 4G/Application Architecture/API efforts/ … Walled-garden vs. bazaar/Impact of wireless LANs on 4G
• Phil Neumiller (3Com Corp, a.k.a. “Mobility Zealot at Large”):– Overcoming 3G & legacy cellular/Spectrum allocation madness/… 3G stuff to carry to 4G / 4G Network & technology opportunities
• Dana Blair (Cisco Systems):– 4G: “The end of the Intelligent (services) Network”
• Question and Answer Panel
4G Wireless: Future of VoIP4G Wireless: Future of VoIPSession Outline
15Spring VON 2001 © 2001, Cisco Systems, Inc. Session 32 – 4G Wireless: Future of VoIP
Questions?Questions?
Michael A. Ramalho, [email protected]
